Pneumatic siphon.



Patented Dec. I6, |902.

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` ,I {Il} Mw 7TH. u A .d .0. M no N M UNITED STATES;

PATENT Fries..

PNEU'MATiC slPHoN.

frEGlliFlICATIoN formngpart of Letters Patent No. 716,323, dated December 16, 1902.

l Application iled April 4, 1902. 4 Serial No. 101,379. (No model.)

To LLZ whom tm/wy concern.-

` Beit known that I, ANDREW J. WEEKLEY, a citizen of the United States of America, residing at East Pittsburg, in the county of Allegheny, and State of Pennsylvania, have in,- vented certain new and useful Improvements in Pneumatic Siphons, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new andV useful improvements in pneumatic siphons, and more particularly to that class of siphons whereby the sand, filings, and scales are removed from difficult recesses and spaces within iron-molds and the like.

The object of my invention is to provide a y siphon wherein the refuse to be removed from a mold may be rapidly performed without clogging or otherwise obstructing the passage.

Another object ot' `the`invention `is to construct a device of this character that will be extremely simple, strong, durable, comparatively inexpensive to man ufacture,`and highly forming a part of this specification, and Whereing being greater than the opening 3.

in like numerals of reference indicate like parts throughout both views, in whichl Figure l is a side elevation of my improved siphon. Fig. `2 is a longitudinal section of the body portion of my improved siphon.

In the drawings the reference-numeral l represents the body portion of the siphon, which conforms in shape similar tothat of a T or elbow of ordinary piping. This body portion 1 has formedin its outer4 end 2 an aperture 3, said aperture carrying screw-threads 4. The inlet or aperture 3 has its inner bore downwardly deflected, as seen" at 5. In the opposite end 5 of the siphon is an aperture or opening 6, said openih g being screw-threaded, as indicated 'at 7, the diameter of said open- In the lower face of the siphon 1 is a screw-threaded aperture 8, said aperture having its diameter Aany desired receptacle.

drawings.) In the screw-threaded aperture 8 is secured a pipe l2, said pipe being formed of any suitable material, preferably rubber.

Secured in the aperture 6 is a pipe 14,` said pipe carrying the refuse to any desired receptacle or outlet.

The operation of myimproved siphon is as follows: In the art of molding considerable trouble has been experienced in removing the sand, filings, and scales from difficult and small recesses, and to overcome this I have provided a siphon wherein the suction-pipe l2 may be inserted in such recesses and the refuse readily removed from the same. The sand or refuse is generally broken or disintegrated by means of a rod or other suitable means, whereby the sand is in that condition that it may be readily drawn through the suction-pipe. Having inserted the suction-pipe within the recess, the valve ll is turned, allowing any desired amount of compressed air to travel through the siphonl, said passage of air being sufficient to cause the suction through the pipe 12, whence the sand is withdrawn and passes through the outlet 14 to By constructing my siphon to conform to the shape shown in Fig. 2 I overcome the clogging or congestion of the siphon, great trouble having been experienced in this line by a congestion of the sand in the body portion of the siphon. By making the enlarged portion 9 on the lower side of my improved siphon I afford means whereby the sand will readily find theoutlet 6, Where the compressed air will aid the same to its destination. This enlarging of the body in this manner enlarges the chamber, and this enlargement is at a pointimmediately above and to the left of the Adischarge from the pipe 12 into the chamber, and henceany lumps or other bodies of solid material drawn up the pipe l2 are readily conducted to the outlet 6, since they are not required to make IDO a turn in the chamber at direct right angles vI claim as new, and desire to secure by Letters Patent, is-

l. In a pneumatic Siphon, the combination of a body portion, an air-inlet, a refuse-inlet and a common outlet formed therein,said body portion being provided with an inclined side between said refuseinlet and said outletport, and means provided in said air-inlet for detlecting the injected air against said inclined side, substantially as described.

2. In a pneumatic siphon, the combination of a body portion having formed therein, inlets and an outlet, said inlets being of smaller bore than the outlet, one of said inlets having the inner end of its bore downwardly defiected, and an inclined side approximately opposite said deiiected inlet, substantially as described.

3. In a pneumatic siphon, the combination of a body portion, an air-inlet, a refuse-inlet arranged below and being ot' larger diameter than said air-inlet, and an outlet of larger diameter than said inlets, and means for deliectiug the injected air against the Wall of the body portion between said refuse-inlet., and said outlet, substantially as described.

In testimony whereof I affix my signature in the presence of two witnesses.

ANDREW J. WEEKLEY.

Witnesses:

JOHN NoLAND, E. E. POTTER. 

